f r h o n g tin Khoa hoc & Cong nghe Lai Chau Thanh phan vqt chat dac trung mo hiem Dong Pao tinh Lai ThS N G U Y I N DUY PHAP "'''', KS N G U Y I N VAN HCU »'''' (1) Bd Khoa hgc vi Cdng nghe (2) Cdng ty Cd[.]
f r h o n g tin Khoa hoc & Cong nghe Lai Chau Thanh phan vqt chat dac trung mo hiem Dong Pao - tinh Lai ThS DUY PHAP "', KS N G U Y I N VAN HCU »' (1) Bd Khoa hgc vi Cdng nghe (2) Cdng ty Cd phin Dat hiim Lai Chiu, VIMICO NGUYIN ABSTRACT Gidi thidu cic kit qui phin tich vi thio ludn vi thinh phin hoi hgc vi khoing v$t die tnrng cCia khoing sing dit hiim Ddng Pao sCr dgng cic thiit bi nhiiu xg ranghen D8 advance, JXA 8900 kin hiin vi didn td vi ICP-MS Cic khoing v$t qudng chCi yiu li bastnaesite, barite, fluonte cd die diim bi phong hoi mgnh ed kich thudc hgt thd din mjn Trong dd.khoing vdt bastnaesite cd kich thudc ch yiu tu 0.2 mm trd xudng, thdm chili din 10 micromet Thinh phin nguydn td hiim chu yiu li nguy td dit hiim nhdm nhg Ce, La, Nd vdi mdt him lugng U, Th tw vii chgc din hing trim ppm Ngoii c phit hidn sw biin ddi cua bastnaesite thinh lanthanite sw thuy hoi mit di nguydn td F vi tim thiy mdt sd nguydn td dit hiim Ce, La Nd, Eu cic khoing vdt barite vi fluorite Vdi kit qui nghidn cdu niy hy vgng sd cung cip nhCmg thdng tin bd sung hCni ich cho vide dinh gii bin chit cua thin phin vdt chit cua khoing sing 1.0ATVAN0E Khodng sdng dit hilm Ddng Pao, tinh Lai Chdu dd dijegc nghidn CLPU tu- nhO'ng ndm 50 cua thi ky XX cho din vd duge cho Id thude logi egrbonatite Cdc khodng vdt dd dugc phdn tfch ddnh gid cd gid tri Id bastnaesite, parasite, barite, fluorite Chung tdi dd tiln hdnh nghidn cCru phdn tfch cdc miu khodng ddc trung cua khodng sdng bao gim: bastnaesite, barite, fluorite miu hgt phong hdg mjn vd miu hda todn didn V l kfch thudc chung da bj phong hda mjn thdm chf tdi mdt vdi micromet vd hilm quan sdt dugc tinh thi nguydn vpn (bastnaesite) hofc biln dli hda hpc (bgstnaesite thdnh lanthanite) Chung cd sy cdng sinh lin nhu fluorite vdi barite dit hilm (phdt hifn dit hilm khodng vft fluorite) vd nguge Igi barite cQng ed chCpa cdc nguydn t l dit hilm Cdc nguydn t l dit hilm dfe trung cho nhdm nhe dgng cacbonat vd ding thdi cd mft lugng nhd mdt vdi chyc din hdng trdm ppm U, Th qufng KET QUA NGHIEN CUfU VA THAO LUAN 2.1 THANH PHAN KHOANG VAT OAC TRLfNG'' Dudi ddy Id kit qua phdn tfch cdc khodng vft dfc trung dugc lly tu- khodng sdng trdn ca sd sudyng ede thilt bj vd phuang phdp phdn tfch hifn dgi nhu nhidu xg Ranghen DS-Advance XRD, vi dd difn tu- JXA 8900 Khoang vat bastnaesite Cdng thu-e (Ce.Lg)C03F Ld khodng vft dit hilm chu ylu cua vung md Odng Pao Khodng vft cQng dd bj phong hod ca hpc tdm vd vgn d cdc kfch thudc khdc tip 0.01 din 0.2 mm Hilm quan sdt thiy tinh thi bastnaesite cdn nguydn vpn dgng tgc phuang (dgng tim cgnh) Ngcdi phong hod hod hpc Idm biln dli khpdng vft bastnaesite tgo thdnh lantanite Khpdng vft bastnaesite cd mdu vdng nhgt, phdt vdng dnh thuy tinh din dnh md, bdn suit din suit, gidn, vlt vd g l ghi, dan trgc duang, cd da sic ylu, ty trpng 4.7 din 5.02 Thdnh phin hpd hpc bastnaesite dugc xdc djnh blng phdn tfch mierozonde dan khodng cho kit qua nhu bang Kit qua phdn tfch nhilu xg Ranghen khodng vft bgstnaesite ndu d bdng (*) KS Nguyen Van DU, Lien Doan Dia chat Xa Hilm De an tham dd bd sung md dat hiem - fluorite barite Ddng Pao thugc xa Ban Hon, Ban Giang, huyen Tam DUdng, tinh Lai Chau Bao cao ky thua Npi thang 12 nam 2010 "22" Thong tin Khoa hoc & Cong n g h e Lai Chau Bang Thanh phan hda khoang vat bastnaesite Hdp phdn KV1 B SrO SIO, ThO, CO, CaO Pr La CeA Nd,03 Sm,03 Tdng 0.026 0.048 0.466 36.985 0.085 11.728 11.604 33.892 4.987 0.180 100 0.058 0.2594 34.949 0.232 12.516 9.548 36.844 5.995 0.147 100 CN2-B Bang So lieu phan tich Rdnghen khoang vat bastnaesite IVlluCNI-OT Mdu CN2- DT M l u CN3- OT lieu chuan Bastnaesite Bastnaesite Bastnaesite Bastnaesite J D J D J D J D 10 4.91 10 4.85 10 4.86 4.9 3.56 3.55 3.55 3.56 2.89 2.87 2.87 10 2.87 2.45 2.43 2.47 2.43 10 2.06 10 2.05 2.08 2.05 2.02 2.01 2.01 2.01 1.90 1.89 1.89 1.89 Thi? tlf Khoang vat parisite.Cdng thu-e (Ca,Ce,La)C03F Ld khodng vdt d i t hilm ed cung tfnh chit vdi bastnaesite nhung cd hdm lugng Ca tdn han 10% Khodng vat cd mdu vdng, vdng ndu, dnh thuy tinh din dnh nhua, gidn, bdn suit din md, vlt vd dgng vd sd, dan true duang, da sic ylu, ty trpng 4,32 din 4,41 Thanh phin hod hpc cua parisite da duge xdc djnh bang phdn tich mierozonde cho kit qua nhu bang Kit qua phan tfch nhidu xg Ranghen doi vdi parisite cho d bang Bang Thanh phin hda khoang vat parisite Hop phan SiO, CN2-B 0.069 KV2-B 0.035 ThO, CO, CaO La203 Ce NdA Sm,03 Tdng 8.948 6.729 36.598 9.883 0.297 98.002 8.373 5.841 32.512 9.231 0.658 92.136 Pr •^'2^3 26.304 0.350 9.174 22.941 12.194 Bang So lieu phan tfch rdnghen khoang parisite ThiJti/ M i u CN - DT Sd lieu chuan Parisite Parisite J D J D 3.55 3.56 2.82 2.82 2.04 10 2.04 Khoang vat lanthanite Cdng thufc (La,Ce)2(C03).nH20 Ld sdn phlm biln doi cua bastnaesite dilu kidn phong hod, thuy hod bastnaesite vd mang di nguydn td F Khodng vdt gap d dgng bdt dit I n tinh Cd ty trpng 2.61 din 2.84 Mdu trlng hode phdt vdng Ndm tin ton bdt set ndn khd tdeh ridng bidt Vide phdt hidn lanthanite chu ylu dua trdn kit qua xu- ly theo gian d l nhidu xg Ranghen [ Thong tin Khoa hoc & Cong nghe Lai Chau cua tfp hgp bun sdt vd bdt vd vgn eua cdc khodng vft cd mft qufng Kit qua phdn tfch nhidu xg Ranghen doi vdi tfp hgp bun sdt cho cdc pic dfe trung eua lantanite nhu bang Bang So IISu phin tfch rdnghen khoing Thi? t i i lanthanite M l u CN1 86 lieu chuan Lantanite Lantanite J D J D 8.46 10 8.46 4.79 4.71 4.20 4.24 3.88 3.84 3.25 3.24 2.92 2.94 Khoang vat fluorite Cdng thu-c CaF, Ld khodng vft khd p h i biln qufng Mdu cua khodng vft tu- khdng mdu d i n tim nhgt, tfm den ddi thiy cd mdu phdt Igc Trong miu KV2 cua mlu s l mdu sic cua fluorite chu y l u td tfm nhgt d i n tfm den Khodng vft gdp d dgng hgt vd dgng khii bj vd vgn din dgng bdt Bdi vdy kfch thude hgt thgy d l i d cdc logi qufng khde O miu s l 3, fluorite dugc tfp trung cao cdc clp hgt tu- 0.3mm trd xulng edn d l i vdi miu s l thi fluorite Igi tdp trung cao cdc c l p hgt tu-1 mm trd xuong Khodng vdt cd dnh thuy tinh Oing hudng Chilt suit N =1.434 Kit qua nghidn CLPU cho thiy ty trpng eua fluorite phg thude vdo mdu sic Ty trpng d l i vdi logi fluorite khdng mdu Id 3.17 vdi logi fluorite tim nhgt Id 3.19 Fluorite tfm den la 3.23 Trung binh Id 3.205 Khodng vdt fluorite thudng cdng sinh vdi barite, cdc khodng vdt d i t hilm Kit qua phdn tfch Ranghen cho cdc pic ddc trung eua fluorite Id 3.16, 1.92 vd hod khodng vdt d bang Bang Thanh phin hda khoang vat fluorite Hdp p h i n CaF, SrO La,0, Ce Nb,03 Tdng KV2 98.39 1.45 0.036 0.01 ft 100 Khoang vat barite Cdng thu'C BaSO^ Ld khodng vft p h i biln md Khodng vdt tdp trung eao han ede d p dd hgt tu' 0.04mm trd Idn d i n vdi mm Khodng vft gdp d dgng hgt, hgt trCpng ed, bdt vd vgn, ft gdp dgng tinh thi Trong cdc hang hie glQ'a cdc hgt vd trdn b l mft khodng vdt ddi 6{jfgc nhdt dly bdi sdt goethite vd cdc san phlm phong hod eua cdc khodng vft d i t hilm Khodng vft ed mdu trlng, phdt vdng Anh thuy tinh Ty trpng 4.39 Ludng tryc duang Thdnh phin hod hoc cua barite dugc xdc djnh bdng phdn tfch mierozonde nhu bang Kit qua phdn tfch nhidu xg ran ghen cho cdc pic dfe trung eug bgrite td 3.44, 3.01,2.1 Bang Thanh phan hda khoing vit barite Hdp phin CN2-B BaO AI2O, Eu " ^03 CaO Pr ' ^ ' ^03 MnO Nd,03 Tdng 43.872 0.326 0.019 0.019 0.418 0.007 0.035 100 Khoang vat khac Bao gom cdc khoang vat ehCfa silic dang thach anh, khoang vat chu^a sat nhif magnetite, hematite, goethite bi limonite hda, limonite, khoang vat set, calcite Chung bj phong hdaco kich thifdc hat thd cho d i n rat Mot sd hinh anh dac tri/ng Cac so lieu va hinh anh phan tfch cac khoang bastnaesite, parasite, barite diTdi day diTdc thi/e hien tren may JXA 8900 ~2l "Wi Thong tin Khoa hf I; & Cong nghe Lai Chau THANH PHAN HOA HQCC Dudi day la kit qua phan tfch phin hda hpc dgc trung eug miu nghidn cu-u Dat hiem vung Ddng Pao thudc nhdm nhe dd Ce cd hdm lugng eao nhlt, sau dd Id La, Nd, Pr, Er (bang 9) Trong miu nghien cQ'u (bang 8) miu so (rtiiu qufng dit hilm - barite) ed hdm lugng fluorite (khoang 1% CaF^) thdp han nhidu so vdi miu s l (34.13%) vd (20.88%) vd nguge Igi Hgi miu vd ed nhieu fluorite han vd Id logi qudng dit hilm - barite - fluorite Trong miu cd chu'g mdt lugng nho uran vd thori Bang Thanh phin hda hgc TR,0, (%) BaSO, (%) CaF2 (%) CaCO, (%) A!,0, (%) TiO, (%) Mau so 3.65 25.95 34.13 10.67 5.64 0.25 Hdm li/dng MIU S6 2.94 49.39 1.10 10.68 8.84 0.56 PA(%) 0.57 0.60 0.53 Fe,0, (%) SiO, (%) Pb (%) Zn (%) U(ppm) Th (ppm) 1.99 14.55 0.28 0.04 45.7 269 10.86 12.07 0.38 0.13 162 80.5 4.21 20.04 0.21 0.16 29 169.7 Thanh phin Mau so 5.54 20.33 20.88 15.67 9.81 0.37 Bang Thanh phin cac nguyen to dat hiim Thanh phin Ce (ppm) Dy (ppm) Er (ppm) Eu (ppm) Gd (ppm) Ho (ppm) La (ppm) Lu (ppm) Nd (ppm) Pr (ppm) Sm (ppm) Tb (ppm) Tm (ppm) Y (ppm) Yb (ppm) Cong Ham li/dng Mau sd 15 263.99 252.20 733.36 49.41 174.15 20.68 13 017.69 3.88 995.72 920.13 Mau sd 12 459.65 55.67 745.34 71.71 349.08 0.22 308.50 454.99 0.15 127.45 3.20 331.16 833.96 488.71 657.67 0.37 146.97 6.21 36 488.21 159.28 13.23 29 379.47 Mau sd 23 782.74 69.87 105.89 103.21 596.75 0.52 18 111.87 4.85 543.86 496.74 628.51 315.12 0.61 515.79 30.43 55 404.55 (*) ThS Nguyin Duy Phap, Vien Cdng nghe Xa Hilm Nghien cdu miu cdng nghe Dd in tham dd bd sung mo dat hidm - fluorite - barite Ddng Pao thudc xa Ban Hon, Ban Giang, huyen Tam DUdng, tinh Lai Chau Bao cao ky thuat Ha Ndi, thang 11/2010 ( Thong tin Khoa hoc & Cong nghe Lai Chau KET LUAN TCP nhu-ng s l lifu phdn tich thdnh phin khodng vft, hda hpc miu nghidn cu-u dd dugc trinh bdy d trdn, nhdm tde gid ed mft s l kit lufn sau: Khodng vdt dit hilm eua khodng sdng Odng Pao td bastnaesite vd Id khodng vft dit hilm nhdm nhp dgng carbonate cd thdnh phin nguydn t l hilm chu ylu Id Ce, La, Nd, Er nhung dd bj phong hda mgnh, ed kfch thudc phi biln tu- 0,01mm din 0,2mm Ngodi bastnaesite, edn phdt hifn thiy khodng parasite, lanthanite dgng carbonate, mft lugng nhd phdng xg ddc trung Id uran vd thori chilm ty If tu- vdi chgc ppm din 200 ppm vd sy ed mdt eua nguydn to dit hilm barite vd fluorite Ngodi khodng vdt dit hilm bastnaesite, cdn ed ede khodng vft cd fch khde nhu barite, fluorite cd gid trj cdng nghifp O l dam bao tdn thu tdi nguydn vd mdi trudng, khai thde khodng sdng d n thyc hifn tfn thu trift d l logi khodng vdt dit hilm, khodng barite, khodng fluorite trdn vd tfnh todn cdc bifn phdp an todn phdng xa khgi thde 26 Ngo lai DK9955 uu the vuot troi NNhliu gidng ngd lai cua My sau xim nhgp thf trw&ng Vi^t Nam di di I9I nhO'ng diu in doi vdi ngwdi ndng dan M$c dd m&i xuit hidn, gidng ngd lal DK9955 di tgo sy bit ng& ve ning suit, khiin ndng din dang tim din giong ngd niy nhw mdt nhu ciu di ning gii tri su' dyng dit hdng qua Cty Denkalb Vift Nam, nhilu ndm qua Cty Mcsanto (My) dd dua cdc gilng ngd lai C919, DK9901, DK8868 nhlt Id gilng DK9955 vdi nhO-ng uu thi vugt trfl dang chilm dugc nilm tin cua ngudi ndng ddn T Thdng 12/2010 gilng ngd lai DK9955 dugc Bf Ndng nghif pPTNT cdng nhf n td gilng quIc gia, nhung uu thi vugt trf i ndn vg xudn hd 2011 gilng ngd ndy dd dugc trlng rfng rdi d cdc tinh: Sgn La, Hda Binh, Hd Giang, Phu Thp Khu vyc miln Bic vdi thdi gian sinh trudng tO- 105-110 ngdy thfeh nghi rfng vdi nhilu logi dit trlng vd dilu kifn thdi tilt cQng nhu trinh df canh tdc cua ndng ddn tu'ng dja phuang Gilng ngd DK9955 trlng mft df ddy, khoang cdch 65-70cm x 20em, Id to thing ndn khdng phai tranh chip dnh sdng, bd r i khde khd ndng chIng d l tot, khdng dugc nhilu sdu bfnh dfe bift Id bfnh gi sit vd dim ndu, hgt diu cd mdu cam, Idi nhd, ndng suit tilm ndng tip 12-14 tIn/ha DK 9955 khdng ehl ed tilm ndng ndng suit Idn md cd df khoe bIp rit mSn nhdn DK 9955 It bj d l , phii hgp vdi miln nui cao, khdng thufn tifn giao thdng vdi tfp qudn luc mua vy vdn d l ngd trdn nuang chd gid eao mdi bdn hay chd thdi tilt dpp mdi thu Cdy tdn Idu, cdng dk Idu cdng nfng hgt, cd thi d l dugc trdn nuong tdi 140-150 ngdy cdc gilng khdc thudng ehl khodng 120 ngdy nhd Id bi kfn, nhd hgt khd bj mic thii Sd dT dirge mf nh danh Id "kl leo dli" vT dgi bdi DK 9955 khdng ehl hgp trlng d ding bdng md rit thich nghi vdi vung dit cd dd die Idn, dli nui nhu d Tdy Bic Tdy Nguydn Of ding diu cao, thdn xanh, sgeh bfnh din ngdy thu hogch DK 9955 Id gilng djnh vj cho nhO-ng vung trlng ngd vy, thdm canh lin vQng dit die Trong cufc dua trlng ddy d l tdng ndng suit, nhilu dli thu eua DK lao theo nhu eon thidu thdn nhung phin da thit bgi khdng phli vl ky thuft canh tdc khdng dCing md bdi bf gilng cua hp khdng chju dugc trlng ddy gdy dp lyc sdu bfnh Idn, khd ndng kit hgt kdm DK 9955 thich nghi vdi nhilu kilu khf hfu dCi hgn hdn hofc mua nhilu MAI LAN (TH) ... hidm - fluorite - barite Ddng Pao thudc xa Ban Hon, Ban Giang, huyen Tam DUdng, tinh Lai Chau Bao cao ky thuat Ha Ndi, thang 11/2010 ( Thong tin Khoa hoc & Cong nghe Lai Chau KET LUAN TCP nhu-ng... "Wi Thong tin Khoa hf I; & Cong nghe Lai Chau THANH PHAN HOA HQCC Dudi day la kit qua phan tfch phin hda hpc dgc trung eug miu nghidn cu-u Dat hiem vung Ddng Pao thudc nhdm nhe dd Ce cd hdm lugng... fluorite trdn vd tfnh todn cdc bifn phdp an todn phdng xa khgi thde 26 Ngo lai DK9955 uu the vuot troi NNhliu gidng ngd lai cua My sau xim nhgp thf trw&ng Vi^t Nam di di I9I nhO''ng diu in doi vdi